The equation shows neutralization of an acid and a base to produce a salt and water. 2hcl + na2o → xnacl + h2o which value of x will balance the equation? 1 2 3 4

The value of x that will balance the equation is 2.

Explanation:

The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, the chemical equation must be balanced.  For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation, both in the reagents and in the products.

The coefficients located in front of each molecule indicate the amount of each molecule for the reaction.  By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.  

So in this case you have:

So, since you must have the same amount of sodium and chlorine on each side of the reaction, it can be balanced as follows:

2 HCl + Na₂O → 2 NaCl + H₂O

Then you have:

Now you can see that on both sides of the reaction you have the same amount of each element. So the chemical reaction is balanced.

The value of x that will balance the equation is 2.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min